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avcodec/srtdec: fix potential overread.

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(cherry picked from commit 3a54c221d5)

Signed-off-by: Alexander Strasser <eclipse7@gmx.net>
This commit is contained in:
Clément Bœsch
2013-09-08 18:28:11 +02:00
committed by Alexander Strasser
parent dc0403530e
commit 2dc6c5d462
1 changed files with 2 additions and 1 deletions
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3
libavcodec/srtdec.c
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@@ -204,7 +204,8 @@ static const char *read_ts(const char *buf, int *ts_start, int *ts_end,
"%*[ ]X1:%u X2:%u Y1:%u Y2:%u",
&hs, &ms, &ss, ts_start, &he, &me, &se, ts_end,
x1, x2, y1, y2);
buf += strcspn(buf, "\n") + 1;
buf += strcspn(buf, "\n");
buf += !!*buf;
if (c >= 8) {
*ts_start = 100*(ss + 60*(ms + 60*hs)) + *ts_start/10;
*ts_end = 100*(se + 60*(me + 60*he)) + *ts_end /10;